Assuming we just brainstormed better alternatives right here and now, will they actually be implemented?
There's no way of knowing, because it's up to Theymos. I'm pretty sure he reads threads like these and knows what people are expressing, but if or how he's going to respond will remain a mystery right up until the time he changes something.
Back in January, actmyname and I were tagging shitposters because the problem had gotten so out of hand that it seemed like there was nothing else a DT member (or anyone else) could do--and no, it wasn't a good use of the trust system and I had to delete all those feedbacks eventually. Then Theymos introduced the merit system essentially out of nowhere. I certainly didn't see it coming. So my guess is that Theymos has some ideas of his own in mind, and the changes that get made might be a fusion of those plus what everyone else has suggested. But who knows?
How about opening a board opened to only DT members, or also staff members. And when a member is considering tagging a members (positive or negative), the issue is brought to the board and the entire active DT members can brainstorm and decide if it's what leaving a feedback.
That would take too much time, coordination, and effort to get DT members to come to a consensus about something as simple as a feedback. DT members don't get paid for tagging people, you know. I think most DT2 members are either inactive accounts now or don't actively tag scammers. There's only a handful of DT2 members who actually try to bust scams and various other forms of untrustworthiness, and there have been many disagreements among them. Personally I don't have the time to waste on participating in a referendum for each feedback that's up for consideration.